A Projectile Is Fired from Point 0 at the Edge

question 739

Short Answer

A projectile is fired from point 0 at the edge of a cliff,with initial velocity components of v_0x= 60 m/s and v_0y = 175 m/s,as shown in the figure.The projectile rises and then falls into the sea at point P.The time of flight of the projectile is 40.0 s,and it experiences no appreciable air resistance in flight.What is the magnitude of the velocity of the projectile 21.0 s after it is fired?

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Definitions:

Sea Level Rise

The increase in the global average level of the oceans, attributed primarily to climate change via melting ice and thermal expansion of seawater.

Karst Topography

Topography characterized by sinkholes, caves, limestone pillars, poorly organized drainage patterns, and disappearing streams; generally formed from the dissolution of limestone.

Coral Reefs

Biodiverse underwater ecosystems constructed by colonies of coral polyps held together by calcium carbonate, found in tropical oceans.

Sea Caves

Natural hollows formed by the wave action of the sea on weak points in coastal cliffs, known for their stunning landscapes and ecological habitats.